The case is sourced from that "other rep case" factory, it's the same case PAM113E and 036MM you were able to source from Ruby and Trevor, come as.
The case is slightly odd, as its 0.5mm thicker (although the caseback is slightly thinner than one on a standard rep), corners are noticeably 'rounded' downwards, thicker CG and wider crown. It's nice but as many other guys here pointed out, not exactly correct.
Still, visually much nicer that case with thin crown and undersized CG.
Dial is thinner than both gen and standard rep dial, hence no requirement for longer cannon pin. They most likely made the dial thinner to compensate for short cannon pin 'issue'. Minute hand already comes with correct tube length.
Caution for modders out there, the dial is not interchangeable with the standard one duel to the case design, i.e. the groves for mov't case clamps are positioned lower, so if you were to install the standard thickness dial into one of these cases, you'd have some major problems. Both Vacuum and I managed to do that with 036MM standard dials, but I managed only after good 2 hours of pushing, fiddling, 3 case clamps lost in the process, lot of swearing etc...
I'd be careful with that mov't advertised as "swiss 6497" though, if I were you. 8)
cheers,
babola